Tramadol is synthetic opioid so it is a narcotic per say(fentanyl, sufenta, alfentanil etc are all synthetic opioids), but is highly receptor specific so there is very little problem with respiratory depression, dependence etc.
The Smithsonian Institution (/smÉªÎ¸ËsoÊniÉn/ smith-SOE-nee-Én), established in 1846 for the increase and diffusion of knowledge, is a group of museums and research centers administered by the Government of the United States.
Check out our Top 10 USA Museum guide for moreâ¦. The Smithsonian Institution was established in 1846 and located in Washington DC. Widely regarded as the biggest Museum complex and research area in the world, it is comprised of 19 Museums in total, 9 research centres and the National Zoo.